Grain-door.



T -5 4 M if W w G. A. LARSEN.

GRAIN DOOR.

APPLICATION rxLnn SEPT. a, 1910.

' 1,020,831Q Patented Mar. 19, 1912.

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CHARLES A. LARSEN, OF COLGATE, NORTH DAKOTA.

GRAIN -DOOR.

Specification of Letters Patent.

Patented Mar. 19, 1912.

Application filed September 9, 1910. Serial No. 581,320.

To all whom it may concern Be it known that I, CHARLES A. LARSEN, acitizen of the United States, residing at Colgate, in the county ofSteele, State of North Dakota, have invented certain new and usefulImprovements in Grain-Doors; and I do hereby declare the following to bea full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

This invention relates to improvements in grain doors for cars, and hasfor one of its objects to improve the construction and increase theefiiciency and utility of devices of this character.

Another object of the invention is to provide a device of this characterwhich may be readily applied without material structural changes in carsof different makes, and which may be readily applied without injury tothe car or to the improved device.

With these and other objects in view, the invention consists in certainnovel features of construction as hereinafter shown and described andthen specifically pointed out in the claim; and, in the drawingsillustrative of the preferred embodiment of the invention, Figure l is aView of a portion of a car including the doorway opening from theoutside with the improvement applied,

.Fig. 2 is a plan view of the improved device with the ear structure insection on the line 2-2 of Fig. l, enlarged, Fig. 3 is a view of theimproved device from the inside of the car with the floor of the car insection, Fig. 4 is a view similar to Fig. 2 with the attachment inreleased or buckled position.

The improved device may be applied to the doorway openings of cars ofvarious constructions, and in the drawings is shown applied to aconventional car in which 10 represents the floor, 11-12 the side postsof the doorway opening, these being the only portions of the car withwhich the improved device comes in contact. The improved door is formedof two sections, a relatively wide sect-ion 14 and a relatively narrowsection 15, the two sections being hingedly united at 16. The combinedsections 14-15 are greater in width than the doorway opening so thatthey extend over the inner faces of the posts 11-12, as shown in Fig. 2.

Connected to the outer face of the narrow section 15 is a plate 19,preferably sheet metal, and lapping over upon the adjacent portion ofthe wider section 14, and thus covering the joint between the twosections and guarding the same. Connected at one end to the narrowsection 15 and likewise to the plate 19 is a locking bar 20, havingdiagonal braces 21-22 connected thereto near its free end and rigidlyconnected at their other ends to the member 15 and its plate 19. The bar20 and its braces 21-22 extend over the wider section 14 and engagebetween perforated lugs 23-24 extending from the member 14, theperforations being designed to receive a holding pin 25 or othersuit-able fastening device, or to receive a suitable lock or seal, asmay be preferred. The bar 20 is extended at one end and formed with anoffset 17 adapted to enter a cavity indicated at 26 in the frame member11 when the door is in closed position, as shown in Figs. 1 and 2, whilea catch device 18 is connected to the larger door section 14 at theopposite side members to fit in a socket 27 in the side post 12 when thedoor is closed, as shown in Fig. 2. B this means the combined sections14-15 are coupled detachably to the side posts 11-12 and prevented frommovement either vertically or laterally relative thereto, When the doorsect-ions are locked in closed position, while at the same time thecatches 17-18 will be released from engagement with the posts when thedoor is buckled when opened, as shown in Fig. 4. By this means it willbe obvious that a simply constructed grain door is produced which may bereadily applied to a car by simply forming apertures in the inner facesof the door posts 12-13 to receive the catches 17-18 this being the onlychange required to be made in the car. Then by simply placing thecombined sections 14-15 in position against the inner faces of the postsand locking the member 20 at its free end between the lugs 23-24 andinserting the lock or seal, the grain door is firmly supported inposition, and will not work loose under the jars and concussions towhich devices of this character are subjected when in use. The pressureof the grain against the inner side of the grain door holds the latterfirmly in position and prevents displacement, while at the same time canbe readily released by simply removing the seal or lock from the lugs23-24 and permitting the united members CIT 1%15 to buckle outwardly, aswill be obvious. The sections 1415 may be con structed of any suitablematerial and in any suitable manner, but will preferably be made of twothicknesses of material in laminated form or crossing each other atright angles in the ordinary manner.

What is claimed is 2-- The combination With a pair of door posts eachhaving a recess, of a door comprising a relatively narrow section and arelatively wide section hingedly connected at one side, a catch carriedby the wide section and engageable with the recess of the adjacent post,a locking arm fixedly secured intermediate its ends to the narrowsection, one end of the arm terminating in a catch engageable with therecess of the other post and the other end extending over the widesection, and means for locking the extended end of the rod to said widersection.

In testimony whereof, I afliX my signature, in presence of twowitnesses.

CHARLES A. LARSEN. Witnesses:

GEORGE M. CHOWDER, J. N. LARSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. C.

